Surge impedance loading

Definition according to Cigré guide 531 chapter 4.2.5

The surge impedance loading, or natural loading, is the power loading at which reactive power is neither produced nor absorbed.

Symbol
$SIL$
Unit
MW
Formulae
$\frac{{U_n}^2}{Z_{ch}}$Nominal voltage
$\frac{{U_o}^2}{Z_{ch}}$Operating voltage
Related
$Z_{ch}$
Surge impedance [$\Omega$]